spring入门实现打印Hello Spring!

SpringHello.java

package com.spring.hjsjy;

/**
 * 〈一句话功能简述〉<br>
 *
 * @author hjsjy
 * @create 2018/9/20
 * @since 1.0.0
 */
public class SpringHelloWorld {
    private String  name;

    public void setName(String name) {
        this.name = name;
    }
    public void printHello(){
        System.out.println("Hello Spring!");

    }

}

Main.java

package com.spring.hjsjy;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * 〈一句话功能简述〉<br>
 *
 * @author hjsjy
 * @create 2018/9/20
 * @since 1.0.0
 */
public class Main {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");//加载spring上下
        HelloSpring helloSpring = (HelloSpring) context.getBean("hj");//获取hj的bean
        //HelloSpring helloSpring=context.getBean(HelloSpring.class)
        //另一种写法这样就不需要强制类型转换
        helloSpring.printHello();
    }
}

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="hj" class="com.spring.hjsjy.HelloSpring">
        <property name="name" value="hjsjy"/>
    </bean>
</beans>
posted @ 2018-09-23 20:45  narojay  阅读(585)  评论(0编辑  收藏  举报